Ore-concentrator



(No Mod'el.)

P. M. ILBR.

ORE GONGBNTBATOR.

No. 47,506. Patented Apr. 26,- 1892.

.lume EL N 411611 c J Je n UNITED STATES FRANK M. ILER,

PATENT OFFICE.

oF' MARioN, orno.

ORE-CONCENTRATOR.

SPECIFICATION forming part of Letters Patent No. 473,506, dated April 26, 1892.

Application filed April 20, 1891.

To ctZZ whom t may concern:

Be it known that I, FRANK M. ILER, of Marion,in the county of Marion and State of Ohio, have invented certain new and useful Improvements in Ore-Concentrators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in ore-concentrators; and it consists in certain features of construction and in combination of parts hereinafter described, and pointed out in the claims.

Heretofore ore-concentrators have usually been run or operated until a goodly quantity of the concentrated material had accumulated therein, whereupon the machine was stopped and a socalled cleanup was had-that is to say, the concentrated material was removed and everything was put in order for another run. The cleaningup process usually required a good deal of time as compared with the length of the run, and hence the cleaning up greatly reduced the amountof work that the concentrator could turn out. I have therefore devised means for a continuous discharge of concentrated material, whereby the device maybe run continuouslyfor aweek or a month, or for any given length of time.

In the accompanying drawings, Figure lis an elevation in transverse section taken on line c; ai, Fig. 2. Fig. 2 is a plan of a portion of a concentrator embodying my invention. Fig. 3 is an enlarged view in perspective in detail of members D and E.

A represents a laterally vibrating or shaking table, constructed usually of wood and more or less inclined endwise, the table being usually mounted on legs a, that are usually thin fiat springs, and a driving-shaft B extends lengthwise the table and is located just to the one side, this shaft having eccentrics, as at Z9, that are connected by pitmen Z2 with thetable. These eccentricshaveslightthrowsay a sixteenth of an inch, more or less-and as the shaft runs at a comparatively high speed the table is vibrated or shaken laterally, so as to keep the material in a constant state of agitation.

O C are the concentrators proper, these being saucer-shaped dishes, constructed usually Serial No. 389,649. (No model.)

of cast-iron and set in flush with the surface suitable intervals lengthwise the table. If a be employed, two or more rows of concentrators C could extend lengthwise such table. Member C has a heavy rib C on the under side extending from past the center to the outer edge of the dish, where it is integral with the vertical lug O2, the rib and lug being cored to form intersecting chambers c and c2, the former connecting with a rectangular openingc in the bottom ofthe dish. The walls of the vertical chamber c2 converge at the bottom, and a tapering rectangular plug D, usually of cast-iron, is adapted to close the chamber at the bottom, the plug in such case being inserted or removed from the top. Plug D has a central vertical screw-threaded hole for receiving valve E. This valve, as shown, is screw -threaded externally and is hollow and open top and bottom, but at the top end is provided with a long shank E and handle E2, by means of which the valve may` be turned on its axis to screw the valve up or down. The material concentrated in dish C ber e', and from thence may pass into chamgravity, and of course the material. will discharge more freely, according as the valve is screwed .down lower. 'hljhewvalve having been adjusted vertically, as desired, to `regulate the discharge, plug D and the valve may be lifted out by means ot' the valve-handle to drain the concentrator-for instance, over night in cold water-and this having been done the plug and valve may again be returned to their place without losing or disturbing the previous vertical adjustment of the valve. With such construction a continuous discharge can be had. from each concentrator C. The tendency of the heavy concentrated material is to pack into chamber c and clog it, notwithstanding the vibration of the table, and to prevent this I provide as follows: F is an arm of the bell-crank-lever variety adjustably secured to the stationary bar G. The vertical section F of this arm extends down into chamber c2, and the lateral member F operates in chamber c. The free end of double table-that is, a table broad enough--V may be passed through opening c into chalnof the table, members C being distributed at ber c2, and from thence may pass through 5 the cavity ot the valve E and discharge by j IOO member F is pierced vertically to receive a pin f loosely, so that this pin can be withdrawn when it is desired to remove the arm. This pin extends up loosely through opening c. Thelateral arm F is provided with a series of holes, depressions, orproj ections-such, for instance, as notches F2-to make the arm more effective in agitating the material. This stationary arm, operating in the chambers of the vibrating member C, agitates the material in these chambers and prevents it from clogging. The discharge, therefore, may be continuous from each agitator, and the device can be run continuously as long as desired without stopping to clean up. Member F is provided with ears f', these ears being provided with set-screws f2, as shown, for engaging the for any desired length of time without stopping to clean up.

What I claim is- 1. An ore-concentrator comprising a shaking table bearing one or more concave dishes, substantially as shown, each dish having a central opening connecting with a lateral chamber below, the latter connecting with a vertical chamber located outside the line of the dish, and a valve for controlling the discharge from the Vertical chamber, substantially as set forth.

2. An oreconcentrator comp-rising a shak- 4o ing table bearing one or more saucer-shaped dishes having connected lateral and vertical chambers, substantially as indicated, of a stationary arm operative within such chamber to serve as an agitator in co-operating with the vibrating member, substantially' as set fort-h.

An ore-coi'icentrator comprising a shaking table bearing concave dishes or concentrators proper, each dish having connected lat- 5o eral and vertical discharging-chambers, the latter having a hollow valve adjustable vertically, such valve and the seat thereof being removable, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two witnesses, this 28th day of March, 1891.

FRANK M. ILER.

Witnesses:

C. H. DORER, WARD HOOVER. 

